 During the reorganization of the Burma front in 1943, the battalion became responsible for guarding the lines of communications and support for the Arakan offensive as part of the Eastern Army.The 1st Battalion, Wiltshires were transferred to the 4th Indian Infantry Brigade, which also included the 3rd Battalion, 9th Gurkha Rifles and 8th Battalion, 8th Punjab Regiment, part of 26th Indian Infantry Division, in October 1943.With the 26th Indian Division, the 1st Wiltshires took part in the Battle of the Admin Box.